Finding the Third Proportional to 16,422 and 25,402

Step by Step Solution

1. Step 1: Write the proportion equation
   16,422 : 25,402 = 25,402 : x
2. Step 2: Convert to fraction form
   16,422/25,402 = 25,402/x
3. Step 3: Cross multiply
   16,422x = 25,402 × 25,402
4. Step 4: Simplify right side
   16,422x = 645,261,604
5. Step 5: Solve for x
   x = 645,261,604/16,422
6. Step 6: Final answer
   x = 39,292.51